Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1998-04-17
2000-08-08
Ham, Seungsook
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
25036309, 378207, G01T 1161
Patent
active
061005312
ABSTRACT:
A dual-purpose transmission source for use in a nuclear medicine imaging system is described. A Cs-137 point source is used to transmit radiation having a 662 keV photopeak to a corresponding detector during a transmission scan of an object. The Cs-137 source can be used in transmission scans for correcting either coincidence or single-photon emission data for non-uniform attenuation. When performing a transmission scan to correct single-photon emission data, a collimator may remain mounted to the detector, since a substantial portion of the transmitted radiation completely penetrates the radiation-absorbing material of the collimator to reach the detector.
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Bertelsen Hugo
Farmer Ian
Hines Horace H.
Nellemann Peter
Shao Lingxion
ADAC Laboratories
Ham Seungsook
Hanig Richard
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